Cited by 77Marine and fisheries researchAquaculture Nutrition and GrowthFish Ecology and Management Studies

Density Dependence of Larval Growth of a Marine Fish, the Southern Bluefin Tuna, Thunnus maccoyii

Jenkins, Greg P., Young, Jock W., Davis, Tim L. O.·1991·Canadian Journal of Fisheries and Aquatic Sciences

Abstract

Competition for food among larvae and subsequent reduction in growth rates has been proposed as a mechanism to explain the apparent density-dependent control of some exploited marine fish populations, but has received little support from field data. Growth of larvae of southern bluefin tuna, Thunnus maccoyii, in the East Indian Ocean was significantly different among stations sampled randomly within a 20-km radius. Growth rate was positively correlated with feeding rate but not with temperature, indicating that larvae were food limited to a varying degree. A negative correlation between growth rate and abundance suggested that food limitation was density dependent. Regression analysis indicated that in areas of highest larval densities there was an approximate 25% reduction in growth rate. We suggest that in areas of high abundance, larvae were competing for food, leading to a density-dependent reduction of growth rate. Because the larval stage of high mortality is prolonged, cumulative mortality of slow-growing larvae over this period may be greater, even if the mortality rate is constant.

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Crossref · 10.1139/f91-162

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18 of 18 references verified0 citation errors · 0 not checkable

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Authors
Jenkins, G. P., Young, J. W., & Davis, T. L. O.
Venue
Canadian Journal of Fisheries and Aquatic Sciences
Published
1991-08-01
Volume
48
Issue
8
Pages
1358-1363
ISSN
  • 0706-652X (ISSN-L)
  • 1205-7533
OpenAlex
W2016055479
Cited by
76
References
18
Citations by year
2026: 8 · 2025: 2 · 2023: 1 · 2022: 1 · 2021: 1 · 2020: 2 · 2019: 4 · 2018: 3 · 2017: 2 · 2016: 4 · 2015: 2 · 2014: 3 · 2013: 4 · 2012: 5
FWCI
3.31
Type
journal article
Language
en
Open access
closed
Locations
Canadian Journal of Fisheries and Aquatic Sciences (publishedVersion)
Topics
  • Physical Sciences › Environmental Science › Global and Planetary Change › Marine and fisheries research
  • Life Sciences › Agricultural and Biological Sciences › Aquatic Science › Aquaculture Nutrition and Growth
  • Physical Sciences › Environmental Science › Nature and Landscape Conservation › Fish Ecology and Management Studies
Keywords
southern bluefin tuna, Thunnus maccoyii, larval growth, density dependence, food competition, food limitation, feeding rate, larval abundance, larval mortality, East Indian Ocean

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